Information Processing Device, Biological Information Measurement Device, and Computer-Readable Medium

2. The information processing device according to claim 1, wherein the given direction from the curved surface point is an opposite direction of a unit normal vector.

4. The information processing device according to claim 1, wherein the processing circuitry is further configured to determine a unit normal vector using an average method.

5. The information processing device according to claim 1, wherein the processing circuitry is further configured to represent a display material corresponding to an acquire spatial region value by a color, and in a case where a polygon mesh is used for the surface shape data, allocates a color to each vertex of the polygon mesh and allocates a color in a polygon region other than vertices by interpolation processing.

6. The information processing device according to claim 5, wherein the processing circuitry is further configured to use Gouraud shading for the interpolation processing.

8. The information processing device according to claim 7, wherein the processing circuitry is further configured to use linear interpolation for the interpolation processing.

13. The biological information measurement device according to claim 12, wherein the given direction from the curved surface point is an opposite direction of a unit normal vector.

15. The biological information measurement device according to claim 12, wherein the processing circuitry is further configured to determine a unit normal vector using an average method.

16. The biological information measurement device according to claim 12, wherein the processing circuitry is further configured to represent a display material corresponding to an acquire spatial region value by a color, and in a case where a polygon mesh is used for the surface shape data, allocates a color to each vertex of the polygon mesh and allocates a color in a polygon region other than vertices by interpolation processing.

17. The biological information measurement device according to claim 16, wherein the processing circuitry is further configured to use Gouraud shading for the interpolation processing.

19. The non-transitory computer-readable medium according to claim 18, wherein the given direction from the curved surface point is an opposite direction of a unit normal vector.